There are 4 other file types using
the CHM file extension!

chm file icon.chm - Chameleon source font

chm file icon.chm - ChemDraw chemical structure file

chm file icon.chm - Two Worlds 2 animation file

chm file icon.chm - SWAT soil chemical input file

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CHM file extension - Microsoft compiled HTML help module

What is chm file? How to open chm files?

The chm file extension is used for Microsoft compiled HTML help files. CHM  is acronym for Compiled Help Modules. This format is used in Microsoft HTML Help, the standard help system for the Windows platform.

A *.chm file represents a collection of HTML documents and other data such as images and JavaScript compressed into a single file.

These *.chm files contain a number of powerful features present in the specifications available here including: Table of Contents, Index of keywords and Full-text search functionality.

The default software associated to chm file type:

Microsoft Windows Help icon

Microsoft Corporation logo Microsoft Windows Help  Microsoft Windows software

Company or developer:
  Microsoft Corporation

Microsoft Windows Help is used to create help files for Microsoft Windows operating system and other Microsoft applications. Windows Help SDKs are different for every version of Windows it can be called Windows Help, Help and Support Center, Assistance Platform 1.0 Client - Windows Vista Help SDK, Microsoft Windows: HTML Help 1.4 etc.

Microsoft HTML Help Workshop icon

Microsoft Corporation logo Microsoft HTML Help Workshop  Microsoft Windows software

Company or developer:
  Microsoft Corporation

Microsoft HTML Help Workshop is help documents authoring application.

Microsoft Windows icon

Microsoft Corporation logo Microsoft Windows  Microsoft Windows software

Company or developer:
  Microsoft Corporation

Microsoft Windows is a family of operating systems developed by the Microsoft Corp.. The first Windows was released in 1985 as a GUI add-on to MS-DOS.  MS-DOS based Windows versions were developed to 2000, when was released the last version called Windows ME. Windows based on NT core started in 1993. Windows NT family are developed to these days, the latest version is called Windows 10.

Help how to open CHM files:

You can open *.chm file with Microsoft Windows Help viewer included in Windows system.

How to convert file with extension CHM:

Some tools are able to export data from *.chm files.

Find converter to chm file type:

hnd to chm

File identification strings:

HEX code: 49 54 53 46
ASCII code: ITSF

List of software applications associated to the .chm file extension

Recommended software programs are sorted by OS platform (Windows, Mac OS X etc.) and possible program actions
that can be done with the file
: like open chm file, edit chm file, convert chm file, view chm file, play chm file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting of the chm files.

  • Open chm file
  • View chm file
  • Create chm file
  • Export chm file
  • Print chm file
  • Others chm file

Software that open chm file - Microsoft compiled HTML help module

Click on the link to get more information about listed programs for open chm file action.

Microsoft Windows:

Multiplatform:

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